OS Speed ​​Engine B21 "Adam Drake Edition 3" SET - 1CJ01

OS Speed ​​Engine B21 "Adam Drake Edition 3" SET - 1CJ01

The OS SPEED B21 Adam Drake Edition 3 was developed in collaboration with international OS team rider ADAM DRAKE, known for his in-depth knowledge and sound technical advice.

This is a combo set:

• Engine B21 Adam Drake Edition 3
• TB02 EFRA2089 (T2090)
• MB01-75 (M2000SC)

By introducing a boost bypass process for the crankcase, the engine runs even smoother and is even easier to drive. ADAM DRAKE's image color, blue anodized aluminum is used for the cutting part of the new outer head, and new design two-color anodized aluminum is used to reduce weight, lower the center of gravity and improve driving performance. You can choose between two different carburetor chokes, 6.5II for Buggy and 7.5 mainly for Truggy.

Collaboration with international OS team rider ADAM DRAKE, a multiple ROAR champion

By adopting a boost bypass for the crankcase, the engine runs more smoothly.

ADAM DRAKE's image color, blue anodized aluminum is used for the cutting part of the new outer head, and new design two-color anodized aluminum is used to reduce weight, lower the center of gravity and improve driving performance.

In addition, the use of a cover plate with an integrated pressure plate reduces wear due to interference between the connecting rod and the cover plate during rotation and improves engine life.

The inner head uses an O-ring to reduce vibration and improve dust resistance.

Blue anodized chokes, 6.5mm for Buggy and 7.5mm for Truggy are standard.

Spec-------------------------
Displacement: 3.49cc / 0.213 cu.in.
Bore: 16.4mm / 0.646 in.
Stroke: 16.55mm / 0.652 in.
Power: 2.65 hp / 2.61 hp / 34,000 rpm.
Practical speed range: 4,000-42,000 rpm.
Motor weight: 350g / 12.35oz